Warm Deck Roof Insulation

Cold flat roofs are typically avoided as you d need to install ventilation which can prove problematic for many reasons relating to space labour costs etc.

Warm deck roof insulation.

The solution warm deck insulation. There are two basic categories of roof design. Warm flat roofs do not need to be ventilated as the insulation is. A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck.

This video will demonstrate how to install a cure it grp waterproofing system in a warm roof build up. Fortunately these days there is a better form of insulation available for your flat roof. The layer of insulation is essentially placed outside of the roof. The vapour control layer is above the decking but below the insulation.

The waterproof layer is above the insulation and a vapour control layer is placed below the insulation. In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately above the underdrawn ceiling depending on the type of roof design and construction. So called because the insulating layer is located above the roof rafters and between the structural supports a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the. Cold deck roof a cold deck roof is where the insulation is placed between the joists rafters or in.

This system is called warm deck insulation and eradicates the condensation and venting issues associated with the cold deck system. No ventilation is required for these types of roofs. The main advantage of a warm deck construction versus a cold deck construction is that there is no need to include a ventilated cavity in the warm deck construction. A warm roof has the insulation above the structural deck which is thus kept warm.

A warm deck roof is where the insulation is placed on top of the rafters joists and the roof covering is then placed over the insulation. The best method of insulating a flat roof is by using a warm deck flat roof construction method. It also provides better thermal performance and makes it easier to eliminate thermal bridging. We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation.

The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.